It depends on what you mean by "beginner." Are you new to BDSM? Have you used nipple clamps before? How do you respond to being collared?
IMO, if you are really new to BDSM, you may want to individually try a collar and some clamps (probably starting with tweezer clamps) before going to a more advanced product like this one.
These clamps are a bit more intense than tweezer clamps and when they are attached to a collar, your movement will increase the intensity of the clamps by pulling on them and tightening them.
If that's what you are going for, then cool.
But, if you're a "beginner" to rough play, you may want to take it a little slower. Only you know what your own tolerance for or need for pain or intense physical sensation is.
I personally find a nice set of cuffs a good into to rough play, but everybody has different tastes.
Being collared can be a really emotionally intense experience, not bad, but you have to know what you want from the experience, and your partner needs to be able to react, respond and know what to do with your reaction properly, too.
Good luck.
Be Safe, be Sane and use Consent. Don't forget your safeword!